Hello

Im a newbie to the Buick world I just purchase a 77 Regal stock with 350 2bbl 71,000 and I’m going thru the car now just did and oil change, and time tune up using oem parts for now I figured I’d get it running good and look to rebuild and add performance as the bank allows lol I was recently checking ove all of my vac lines making sure that they were good as well as making adj’s To the carb, but a boo boo happens when checking the lines I gues from being so old and brittle on the thermo port vac switch 2 of the ports broke off and now I’m like panicking hoping that I can get that part replaced. My question if me keeping it stick for now do I need to replace this switch or can I bypass or cap them off? Plz advise and hopefully this is not a dumb question but as stated before I’m new to the world of older model cars thanks in advance!!

 

If you do not have any engine cooling problems, you can bypass it/plug the vacuum from the carb and distributor, while you wait for your new one.

It's function is to open and allow the vacuum to advance at idle if the car starts getting hot.

(part of the emissions was retarding timing and that can result in overheating, the switch was a "design fix" for that)

 

Like trunk monkey said. Right now stop the vacuum leak. But get a new switch to replace the broken one.

 

Thank you for the info and ok I will do, one more question if I may, I checked with summit as well as with o’reillys and there are various ports that can be ordered for these and I’m thinking mine had 3 connected when it broke but possibly 4 ports are on the broken one, might anyone know which one I should order o that I can order the correct one? Thanks

 

Thank you I was able to find it got one ordered will pick it up tomorrow,but I’m a little confused because I’m gonna soon be installing oil,temp,volt gauges and it seems like guys us this port as they’re temp gauge placement. In that case what do they do with all of the vac lines?? Smh lol

 

I’m in Tx, so find out which one of the 4 is a vac source and hook directly to the carb port in the front? Sorry for my ?’s I’m so green when it comes to this vac stuff lol

 

Thanks man I appreciate ya!!!

 

Welcome from SE Michigan!

 

Cool I’m from Detroit, been here in TX for 4 yrs now

 

Cool, I'm up in the slums of Rochester Hills about 20 miles north of Detroit.

Where abouts in TX are you?(that's a big state!)

 

Tell me about it I’m a little outside the dallas/ft worth area

 

Oh yea I used party up at OU back in the day lol

 

Hey there I was just going back over the thread looking at what we discussed last night and saw that you asked me the a question about the efe valve does it move by hand I just took and look and I believe it’s in the open position I mean I can’t move it lol




QUOTE="Bad Boattail, post: 2857857, member: 2431"]Does the EFE valve in the exhaust manifold still move by hand, or is it stuck in the open position?

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